BD140 ??? in this paragraph, I’m going to discuss usage and features of BD140.
BD140 is a famous PNP type transistor.
It is used in many electronics circuits.
This transistor can handle current up to 1.5A or 1500mA, due to which it can be used to drive loads up to 1.5A in electronic circuits.
For example high power LEDs, relays, motors and more, with these features.
It has lots of other features like its high collector emitter and collector base voltage that is 80 volts, make it an ideal transistor to use in circuits using 80 volts DC or below 80 volts.
Moreover the collector dissipation of this transistor is around 12.5 watt due to which it’s a good transistor to use in audio amplifier circuits.
The minimum base voltage or saturation voltage of the transistor is -0.5V.
Features / technical specifications :
- Package Type: TO-126
- Transistor Type: PNP
- Max Collector Current(IC): -1.5A
- Maximum Collector-Emitter Voltage (VCE): –80V
- Max Collector-Base Voltage (VCB): –80V
- Maximum Emitter-Base Voltage (VEBO): –5V
- Transition Frequency (fT): 190 MHz
- Max Collector Dissipation (Pc): 12.5 Watt
- Minimum & Maximum DC Current Gain (hFE): 25 – 250
- Max Storage & Operating temperature Should Be: -55 to 150 Centigrade
BD140 Applications :
For instance, this is some applications for that transistor.
- Audio Amplifiers
- Switching Loads under 1.5A
- Battery Chargers
- Power Supplies
- Motor Driver
- Darlington Pair
How to Safely Long Run in a Circuit:
Do not operate this transistor from voltage higher than 80V DC.
Always use a suitable heatsink.
Use a suitable base resistor to provide required base current.
Do not operate or store it in temperature below -55 centigrade and above 150 centigrade.